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|
#!/bin/sh
set -e
if [ "$VCS" = git ]; then
dir=.git
file=.gitignore
elif [ "$VCS" = hg ]; then
dir=.hg
file=.hgignore
elif [ "$VCS" = bzr ]; then
dir=.bzr
file=.bzrignore
elif [ "$VCS" = darcs ]; then
dir=_darcs
file=.darcsignore
else
echo "etckeeper: unsupported VCS $VCS" >&2
exit 1
fi
if [ ! -d "$dir" ]; then
exit 0
fi
managed_by_etckeeper="managed by etckeeper"
nl() {
echo >>"$file"
}
comment() {
comment="$1"
echo "# $comment" >>"$file"
}
ignore() {
glob="$1"
case "$VCS" in
git|bzr)
echo "$glob" >>"$file"
;;
hg)
# rather than converting the glob to a regexp, just
# configure hg to use globs
if [ -z "$hg_syntax_printed" ]; then
comment "use glob syntax"
echo "syntax: glob" >>"$file"
nl
hg_syntax_printed=1
fi
echo "$glob" >>"$file"
;;
darcs)
# darcs doesn't understand globs, so we need to translate
# them into regexs. Not a complete converter, but suitable
# for given globs.
if [ "${glob%\*}" != "$glob" ]; then
glob="${glob%\*}"
else
glob="$glob"'($|/)'
fi
if [ "${glob#\*}" != "$glob" ]; then
glob="${glob#\*}"
else
glob='(^|/)'"$glob"
fi
glob="$( printf %s $glob | sed -e 's/\./\\./g;s/\*/[^\/]*/g;s/\?/[^\/]/g' )"
echo "$glob" >>"$file"
esac
}
writefile () {
comment "begin section $managed_by_etckeeper (do not edit this section by hand)"
nl
if [ "$VCS" = darcs ]; then
darcs setpref boringfile .darcsignore
fi
if [ "$LOWLEVEL_PACKAGE_MANAGER" = dpkg ]; then
comment "new and old versions of conffiles, stored by dpkg"
ignore "*.dpkg-*"
nl
elif [ "$LOWLEVEL_PACKAGE_MANAGER" = "rpm" ]; then
comment "new and old versions of conffiles, stored by apt/rpm"
ignore "*.rpm*"
nl
elif [ "$LOWLEVEL_PACKAGE_MANAGER" = "pacman-g2" ]; then
comment "new and old versions of conffiles, stored by pacman"
ignore "*.pacnew"
ignore "*.pacorig"
ignore "*.pacsave"
nl
fi
comment "mount(8) records system state here, no need to store these"
ignore blkid.tab
ignore blkid.tab.old
nl
comment "some other files in /etc that typically do not need to be tracked"
ignore nologin
ignore ld.so.cache
ignore mtab
ignore .pwd.lock
ignore network/run
ignore adjtime
ignore lvm/cache
nl
comment "editor temp files"
ignore "*~"
ignore ".*.sw?"
ignore ".sw?"
ignore "#*#"
ignore DEADJOE
nl
comment "end section $managed_by_etckeeper"
}
if [ -e "$file" ]; then
if ! grep -q "$managed_by_etckeeper" "$file"; then
echo "etckeeper: "$file" does not contain \"$managed_by_etckeeper\" comment; not updating"
exit 1
fi
realfile="$file"
file=$(tempfile)
(
skipping=
while read line; do
if echo "$line" | grep -q "$managed_by_etckeeper"; then
if [ ! "$skipping" ]; then
skipping=1
else
skipping=
writefile
fi
elif [ ! "$skipping" ]; then
echo "$line" >> "$file"
fi
done
if [ "$skipping" ]; then
# reached end of file w/o ending block
writefile
fi
) <"$realfile"
mv -f "$file" "$realfile"
else
writefile
fi
|
